Extrusion



FIG. 1 is a top perspective view of an extrusion showing our new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof.

The extrusion is shown with a symbolic break in its length. The appearance of any portion of the extrusion between the jagged break lines forms no part of the claimed design.

The broken lines in the drawings represent portions of the extrusion that form no part of the claimed design. 

CLAIM The ornamental design for an extrusion, as shown and described. 